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What is the current value during reset input of digital IC's?

Latest Updated:04/01/2008

Question:

Regarding digital ICs, the power supply current ratings are provided.
What is the current value during reset input?

Answer:

There is no rating in particular for the specific state that is the state during reset, and the only guarantee is that the value is equal to or lower than the maximum value during normal operation.

However, in the case of microcontrollers that incorporate I/O ports, reset makes ports to input.
So that unless the voltage of the ports is fixed externally, a through current flows.
Since this through current flows from the power supply to ground, an excessive current passes in all the input buffers of the corresponding ports, and the current value cannot be determined.

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